ἰσχυρά
From LSJ
Βίων δύο ἔλεγε διδασκαλίας εἶναι θανάτου, τόν τε πρὸ τοῦ γενέσθαι χρόνον καὶ τὸν ὕπνον → Bion used to say that we have two teachers for death: the time before we were born and sleep | Bion said that there are two rehearsals for death: the time before being born and sleep
Russian (Dvoretsky)
ἰσχῡρά: τά
1 укрепленные места, недоступные (для неприятеля) точки en.;
2 сильные стороны, сила, мощь (τῆς πόλεως Aeschin.).
